The National Association of Broadcasters announced today that top government officials will address public policy issues related to media, entertainment and technology at NAB Show, to be held April 6-11, 2013 in Las Vegas. U.S. Representative Greg Walden, chairman of the Communications and Technology Subcommittee of the House Committee on Energy and Commerce, will discuss his career in broadcasting and legislative issues affecting the industry, as one of the speakers at the NAB Show opening session on Monday, April 8.